Triplex / Fourplex
Fourplex cost segregation: $30K–$90K Year-1 deductions.
Three-to-four kitchens, three-to-four full bath sets, three-to-four HVAC systems — the 5-yr personal-property weight is dense.
Real examples
What fourplex cost seg looks like in practice.
Charleston, SC
Purchased $840K
Quadplex, original 1985 build
Year-1 federal benefit
$68,400
Savannah, GA
Purchased $720K
Triplex with rooftop deck
Year-1 federal benefit
$58,300
Estimates assume 37% federal bracket and full first-year usability of the loss (active income offset or REPS). Your actual benefit varies with bracket, basis allocation, and CPA's treatment.
Good fit when…
- ✓Triplex/fourplex owners with active income or REPS
- ✓Properties bought 2+ years ago — the lookback math is especially strong here
Skip it when…
- ×Distressed buildings where a major reno is planned (study at the end of reno, not before)
Estimate
Run the numbers on your fourplex.
Pre-set to Fourplex defaults — adjust price + bracket to match your property.
Estimated Year-1 tax savings
$35,520
on $96,000 of accelerated deductions
5-yr15-yr27.5/39-yr
Study cost
$995
ROI on study
36×
Delivery
< 1 hour
Estimate based on RSMeans 2024 cost data and IRC §168(k). Your actual result varies with property age, condition, and basis allocation.